package com.sxu.rabbit.config;

import org.springframework.amqp.core.ReturnedMessage;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.transaction.RabbitTransactionManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitTemplateConfig {
    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        return rabbitTemplate;
    }

    @Bean
    public RabbitTemplate confirmRabbitTemplate(ConnectionFactory connectionFactory){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        // 设置回调方法
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                System.out.println("执行了confirm方法");
                if (ack){
                    System.out.printf("接收到消息, 消息ID: %s \n", correlationData==null? null: correlationData.getId());
                }else {
                    System.out.printf("未接收到消息, 消息ID: %s, cause: %s \n", correlationData==null? null: correlationData.getId(), cause);
                    // 相应的业务处理
                }
            }
        });
        // 消息被退回时, 回调方法
        rabbitTemplate.setMandatory(true);
        rabbitTemplate.setReturnsCallback(new RabbitTemplate.ReturnsCallback() {
            @Override
            public void returnedMessage(ReturnedMessage returned) {
                System.out.println("消息退回:"+returned);
            }
        });
        return rabbitTemplate;
    }

    @Bean("transRabbitTemplate")
    public RabbitTemplate transRabbitTemplate(ConnectionFactory connectionFactory){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        rabbitTemplate.setChannelTransacted(true);  // 开启事务
        return rabbitTemplate;
    }
    @Bean
    public RabbitTransactionManager rabbitTransactionManager(ConnectionFactory connectionFactory){
        return new RabbitTransactionManager(connectionFactory);
    }

}
